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package main
import (
"context"
"flag"
"os"
"sync"
"net/http"
_ "net/http"
_ "net/http/pprof"
"github.com/mimecast/dtail/internal/clients"
"github.com/mimecast/dtail/internal/config"
"github.com/mimecast/dtail/internal/io/dlog"
"github.com/mimecast/dtail/internal/io/signal"
"github.com/mimecast/dtail/internal/omode"
"github.com/mimecast/dtail/internal/source"
"github.com/mimecast/dtail/internal/user"
"github.com/mimecast/dtail/internal/version"
)
// The evil begins here.
func main() {
var displayVersion bool
var pprof string
args := config.Args{
Mode: omode.MapClient,
}
userName := user.Name()
flag.BoolVar(&args.NoColor, "noColor", false, "Disable ANSII terminal colors")
flag.BoolVar(&args.Quiet, "quiet", false, "Quiet output mode")
flag.BoolVar(&args.Plain, "plain", false, "Plain output mode")
flag.BoolVar(&args.TrustAllHosts, "trustAllHosts", false, "Trust all unknown host keys")
flag.BoolVar(&displayVersion, "version", false, "Display version")
flag.IntVar(&args.ConnectionsPerCPU, "cpc", config.DefaultConnectionsPerCPU,
"How many connections established per CPU core concurrently")
flag.IntVar(&args.SSHPort, "port", config.DefaultSSHPort, "SSH server port")
flag.IntVar(&args.Timeout, "timeout", 0, "Max time dtail server will collect data until disconnection")
flag.StringVar(&args.ConfigFile, "cfg", "", "Config file path")
flag.StringVar(&args.Discovery, "discovery", "", "Server discovery method")
flag.StringVar(&args.LogDir, "logDir", "~/log", "Log dir")
flag.StringVar(&args.Logger, "logger", config.DefaultClientLogger, "Logger name")
flag.StringVar(&args.LogLevel, "logLevel", config.DefaultLogLevel, "Log level")
flag.StringVar(&args.SSHPrivateKeyFilePath, "key", "", "Path to private key")
flag.StringVar(&args.QueryStr, "query", "", "Map reduce query")
flag.StringVar(&args.ServersStr, "servers", "", "Remote servers to connect")
flag.StringVar(&args.UserName, "user", userName, "Your system user name")
flag.StringVar(&args.What, "files", "", "File(s) to read")
flag.StringVar(&pprof, "pprof", "", "Start PProf server this address")
flag.Parse()
config.Setup(source.Client, &args, flag.Args())
if displayVersion {
version.PrintAndExit()
}
ctx, cancel := context.WithCancel(context.Background())
var wg sync.WaitGroup
wg.Add(1)
dlog.Start(ctx, &wg, source.Client)
if pprof != "" {
dlog.Client.Info("Starting PProf", pprof)
go func() {
panic(http.ListenAndServe(pprof, nil))
}()
}
client, err := clients.NewMaprClient(args, clients.DefaultMode)
if err != nil {
dlog.Client.FatalPanic(err)
}
status := client.Start(ctx, signal.InterruptCh(ctx))
cancel()
wg.Wait()
os.Exit(status)
}
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